ABB 1VCF681408S0002 circuit breaker

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Product Overview

The ABB 1VCF681408S0002 is a vacuum circuit breaker module for medium-voltage (MV) switchgear, designed as an interchangeable VD4 series component. It functions as a switching, isolating, or fault-interrupting device. The breaker uses vacuum interruption technology, offering high reliability, long service life, and low maintenance.

Technical Specifications

Advantages & Features

1. Vacuum Arc Interruption
   Fast arc quenching, no arc residue, minimal consumables, long service life, low maintenance.

2. High Compatibility
   Interchangeable with VD4 / HA series modules, simplifying spare parts management and field replacement.

3. Reliability and Safety
   Long mechanical and electrical life, with auxiliary contacts and status indicators for safe operation.

4. Modular Design
   Withdrawable or plug-in installation for easy maintenance and replacement.

5. Medium-Voltage System Suitability
   Meets switching, isolation, and protection requirements in industrial and utility MV systems.

Application Areas

• MV distribution system main or branch circuit breaker

• Industrial MV power supply systems

• Substation or switchyard MV switchgear

• Power distribution facilities

• MV equipment test benches / spare replacement systems

Usage and Maintenance Notes

1. Check Rated Parameters
   Ensure rated voltage, current, and short-circuit capacity match the system requirements.

2. Inspect Operating Mechanism
   Regularly check spring-charged mechanism, drive device, and manual operation components.

3. Check Auxiliary Contacts
   Ensure open/close signals, status indicators, and spring-charged indicators function correctly.

4. Follow Installation and Wiring Standards
   Proper grounding and correct wiring of main and auxiliary circuits according to switchgear standards.

5. Environmental Conditions
   Avoid humid, dusty, corrosive, or high-vibration environments; ensure ventilation for heat dissipation.

6. Operation Safety
   Before module removal or replacement, disconnect power and ensure the breaker is in the tripped/safe position.

7. Spare Parts Strategy
   Keep spare modules in critical systems for quick replacement to minimize downtime.

The structure and details of the product：

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